RTM Engineering

Kaskaskia Engineering Group, LLC (KEG) is a 100% woman-owned and managed engineering and contracting firm that was founded in 2006. KEG is a certified Disadvantaged Business Enterprise (DBE) through the Illinois Unified Certification Program, licensed as a Womens Business Enterprise (WBE) by the Womens Business Enterprise National Council, and is recognized as a Women-Owned Small Business (WOSB) by the Small Business Administration. KEGs full service capabilities include transportation engineering, traffic engineering, CADD design, public involvement, geotechnical engineering, structural engineering, GIS mapping, environmental science, construction observation, infrastructure analysis and planning, right-of-way research and acquisition, grant writing, cost estimating, and water resource planning and design. KEG's Contracting services include rotomilling, preformed plastic pavement marking, traffic control, underdrains and grading.

TWM Inc. is a reputable engineering and geospatial firm with 8 strategically located offices across the Midwest and Southeast regions, catering to clients in Illinois, Missouri, and Tennessee. Specializing in providing top-notch services in engineering and geospatial solutions, TWM Inc. is dedicated to delivering high-quality and innovative solutions to meet the needs of their diverse clientele. Generated from their website's infomation

Quality Testing and Engineering, Inc. (QTE) provides geotechnical exploration, environmental/archeological consulting, and construction materials testing to the St. Louis Metro area and Southern Illinois region.